CN101881725B - Automatic monitoring system of greenhouse crop growth conditions based on reflection spectrum - Google Patents
Automatic monitoring system of greenhouse crop growth conditions based on reflection spectrum Download PDFInfo
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- CN101881725B CN101881725B CN2010102009854A CN201010200985A CN101881725B CN 101881725 B CN101881725 B CN 101881725B CN 2010102009854 A CN2010102009854 A CN 2010102009854A CN 201010200985 A CN201010200985 A CN 201010200985A CN 101881725 B CN101881725 B CN 101881725B
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- 239000000523 sample Substances 0.000 claims abstract description 14
- 238000000985 reflectance spectrum Methods 0.000 claims abstract description 10
- 239000013307 optical fiber Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 230000011514 reflex Effects 0.000 claims description 3
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses an automatic monitoring system of greenhouse crop growth conditions based on a reflection spectrum, comprises a first screw rod, a second screw rod and a third screw rod, wherein a sliding block with a threaded hole is respectively sleeved on the three screw rods, and the movement of any points in the three-dimensional space can be realized by a stepping motor; and a camera and a reflection probe are arranged on one screw rod, and a near-infrared light source, a spectrometer, an industrial personal computer and a relay are arranged on another screw rod. The monitoring system is capable of automatically adjusting the space position of the reflection probe by combining the reflectance spectrum and image information under the control of a remote computer and calculating a plurality of indexes, such as leaf area index, water content, chlorophyll content, and the like on the basis of the visible/near-infrared reflectance spectrum, thereby analyzing the growth conditions of crops and providing the reference for growth management of the crops. The whole system has simple structure, low cost and high automation level and realizes the aims of fast and dynamically monitoring the growth conditions of the crops in loss-free, all-sided and multi-index forms.
Description
Technical field
The present invention relates to the crop growth conditions monitoring system, a kind of specifically greenhouse crop growth conditions near infrared light spectra system of monitoring automatically that is used for.
Background technology
Precision agriculture can accurately be grasped weather and the soil information except requiring; Need carry out real-time omnibearing monitoring to crop growth; Make it through cultivation management means such as fertilizer, dispensers, carry out agriculture management efficiently and management, and reduce by the agriculture produced pollution; And then reach the target that improves productive profit, preserves the ecological environment, make that agricultural is able to continue, healthy development., need monitor in real time for this reason, and analyze the reason that produces undesirable condition, so that take appropriate measures crops growing way (upgrowth situation).Metamorphosis such as crop growing state is meant the form phase in the crop growth process, and its strong and weak general leaf area, leaf look, leaf inclination angle, plant height and stem through the observation plant is thick are weighed.At different periods or different light, temperature, moisture content, CO
2Under the growth conditions of soil, the growing way significant difference of crop.
The growing way monitoring technology of crop relates to soil and the identification of weeds background, leaf area and plant height are measured, the form of blade is discerned, four aspects of crop alimentary information analysis, and at present greenhouse crops growing way situation real time monitoring is mainly comprised: machine vision and spectral technique.Machine vision technique is after utilizing imageing sensor to obtain subject image; Image transitions is become digital picture, utilize the anthropomorphic criterion of computer mould to handle, and understand; Reach analysis image and the purpose of extracting monitored object features, finally be used for actual monitoring and control.When crop changed in nutrition condition, the color of the height of plant, upright degree and blade, texture had certain variation.These change the information that is embodied can pass through camera acquisition, and handles with computing machine, matees with the data under the normal condition, thereby provides monitoring result.Yet present machine vision technique is not obtained very big progress on the background Study of recognition, and major part rests on the experiment under the man-made environment, and under actual crop complex background, this technology can't satisfy requirements of actual production.
The applied more and more that spectral analysis technique obtains in plant growth information mainly adopts near infrared spectrum and high spectral technique etc.High spectral technique has begun to be used for the vegetation chlorophyll content evaluation in land for growing field crops, and except spectrometer self signal to noise ratio (S/N ratio) was undesirable, also there were many difficulties in the confirming of vegetation self physical parameter; In addition, the evaluation model of being set up receives the influence of many factors such as vegetation pattern, variety of crops, growing stage, growth conditions and measurement environment, can only be applicable to special occasion.In addition, high spectral detection instrument costs an arm and a leg mostly from external introduction.At present; Domestic how tame unit is at development crop growing state spectral information monitor model machine; But these monitors or function singleness can only be monitored a kind of nutrition condition (like the nitrogen nutrition of paddy rice) of monocrop or portable instrument; Need manual work to operate at the scene, can't carry out real-time omnibearing monitoring to crop easily.
For adapting to the actual demand of precision agriculture; Develop good and cheap, simple and practical, the real-time dynamic monitoring system that can be applied to plant on a small scale plant of China oneself; And realize to have crucial meaning to crop leaf area index, moisture, the isoparametric comprehensive monitoring of chlorophyll density.
Summary of the invention
The purpose of this invention is to provide a kind of low cost, the simple and practical system that carries out non-destructive monitoring greenhouse corps upgrowth situation based on reflectance spectrum automatically; Through obtaining crop canopies reflectance spectrum and pictorial information, understand crop growth conditions and foundation is provided for crop management.
Automatic monitoring system of greenhouse crop growth conditions based on reflectance spectrum of the present invention, first screw mandrel, second screw mandrel and the 3rd screw mandrel that X, Y, Z direction are installed, first screw mandrel is arranged in the rail groove; One end of first screw mandrel links to each other with the rotating shaft of first stepper motor, on first screw mandrel, is with first slide block with threaded hole, and first slide block and equipment box bottom are fixing; At fixing second stepper motor of the upper surface of equipment box; The rotating shaft of second stepper motor links to each other with an end of second screw mandrel of setting, on the bracing frame of the second screw mandrel other end illuminating lamp is installed, and is with second slide block with threaded hole on second screw mandrel; Fixing the 3rd stepper motor on second slide block; The rotating shaft of the 3rd stepper motor links to each other with an end of the 3rd screw mandrel of level, on the bracing frame of the 3rd screw mandrel other end, camera is installed, and is with the 3rd slide block with threaded hole on the 3rd screw mandrel; Fixation reflex probe on the 3rd slide block; Be provided with power supply, near-infrared light source, spectrometer, industrial computer and relay in the said equipment case, reflection probe links to each other with the input end and the near-infrared light source of spectrometer through optical fiber interface, and a signal end of industrial computer links to each other with the output terminal and the near-infrared light source of spectrometer; Another signal end of industrial computer links to each other with remote computer through communication port; An output terminal of industrial computer is connected with the input end of relay, and the output terminal of relay is connected with illuminating lamp with camera, and another output terminal of industrial computer links to each other with the 3rd stepper motor with first, second respectively through stepper motor driver.
In remote computer, configure this automatic monitoring system at horizontal plane coordinate x, detection route and moving step length that y is last, the whole plane of assurance monitoring point ability nurse crop canopy.Camera is radiated at target detection point zone; Remote computer sends the run signal of control the first and the 3rd stepper motor to industrial computer; Make reflection probe move on to the detection position of setting path, camera is passed image information back and is shown that on computers remote computer extracts the information of respective coordinates from these images from the booth scene to remote computer; Confirm that the target detection thing under this coordinate is crop rather than soil; Send the operation turn signal of control second stepper motor then to industrial computer, promote horizontal cross bar and move down, make reflection probe arrive suitable detection position.Then; Remote control computer sends signal through the cut-off illuminating lamp; Near-infrared light source is launched and is comprised visible light (400～700nm) and near infrared (700～1000nm) emergent lights; Shine the target detection thing through optical fiber by reflection probe; The reflected light that detects thing is received by reflection probe and sends into spectrometer through Optical Fiber Transmission, and spectrometer carries out beam split, changes electric signal into and send to remote computer through industrial computer light signal, and computing machine shows, preserves the spectroscopic data that obtains and carries out data pre-service and qualitative/quantitative test at analytic system software.Three stepper motors have guaranteed that monitoring system can carry out the arbitrfary point to crop belts and detect in three dimensions.
The invention has the advantages that: simple to operate; Measure directly and accomplish on the crop leaf surface; Through obtaining crop canopies reflectance spectrum and pictorial information; Understand the multiple index (leaf area index, moisture and chlorophyll density) of crop growth conditions, realized the purpose of quick nondestructive monitoring plant growth; System architecture is simple, and is with low cost, makes its large-scale popularization in crop growth conditions monitoring of booth at home; The system automation level is high; Adopt camera just can discern very big soil of background difference and crop; Combine reflectance spectrum identification to confirm that target detection thing and suitable reflection probe detect height then; Overcome the limitation of simple employing machine vision or spectrographic technique monitoring crop growth conditions, improved monitoring accuracy and reliability.
Description of drawings
Fig. 1 is that the present invention constitutes synoptic diagram;
Fig. 2 is that first stepper motor connects synoptic diagram;
Among the figure: 1-track, 2-camera, 3-illuminating lamp, 4-first stepper motor, 5-second stepper motor, 6-the 3rd stepper motor; 7 equipment boxs, 8-remote computer, 9-reflection probe, 10-first screw mandrel, 11-second screw mandrel, 12-the 3rd screw mandrel; 13-first slide block, 14-second slide block, 15-the 3rd slide block, 70-power supply, 71-near-infrared light source, 72-spectrometer; The 73-industrial computer, 74-relay, 75-optical fiber interface, 76-communication port, 77-stepper motor driver.
Embodiment
Further specify the present invention below in conjunction with accompanying drawing.
With reference to Fig. 1, Fig. 2; Automatic monitoring system of greenhouse crop growth conditions based on reflectance spectrum of the present invention; First screw mandrel 10, second screw mandrel 11 and the 3rd screw mandrel 12, the first screw mandrels 10 that comprise that X, Y, Z direction install are arranged in track 1 groove, and an end of first screw mandrel 10 links to each other with the rotating shaft of first stepper motor 4; On first screw mandrel 10, be with first slide block 13 with threaded hole; First slide block 13 is fixed with equipment box 7 bottoms, and the rotating shaft of fixing second stepper motor, 5, the second stepper motors 5 at the upper surface of equipment box 7 links to each other with an end of second screw mandrel 11 of setting; Illuminating lamp 3 is installed on the bracing frame of second screw mandrel, 11 other ends; Be with second slide block 14 with threaded hole on second screw mandrel 11, the rotating shaft of fixing the 3rd stepper motor 6, the three stepper motors 6 links to each other with an end of the 3rd screw mandrel 12 of level on second slide block 14; Camera 2 is installed on the bracing frame of the 3rd screw mandrel 12 other ends; Be with the 3rd slide block 15 with threaded hole on the 3rd screw mandrel 12, fixation reflex probe 9 is provided with power supply 70, near-infrared light source 71, spectrometer 72, industrial computer 73 and relay 74 in the said equipment case 7 on the 3rd slide block 15; Reflection probe 9 links to each other with the input end and the near-infrared light source 71 of spectrometer 72 through optical fiber interface 75; A signal end of industrial computer 73 links to each other with the output terminal and the near-infrared light source 71 of spectrometer 72, and another signal end of industrial computer 73 links to each other with remote computer 8 through communication port 76, and an output terminal of industrial computer 73 is connected with the input end of relay 74; The output terminal of relay 74 is connected with illuminating lamp 3 with camera 2, and another output terminal of industrial computer 73 links to each other with 6 with the 3rd stepper motor 4,5 with first, second respectively through stepper motor driver 77.
Industrial computer can adopt the UNO-2170 industrial computer that grinds magnificent company.
Claims (1)
1. based on the automatic monitoring system of greenhouse crop growth conditions of reflectance spectrum; It is characterized in that comprising first screw mandrel (10), second screw mandrel (11) and the 3rd screw mandrel (12) installed in X, Y, Z direction respectively; First screw mandrel (10) is arranged in track (1) groove; One end of first screw mandrel (10) links to each other with the rotating shaft of first stepper motor (4); On first screw mandrel (10), be with first slide block (13) with threaded hole; First slide block (13) is fixing with equipment box (7) bottom, and at fixing second stepper motor (5) of the upper surface of equipment box (7), the rotating shaft of second stepper motor (5) links to each other with an end of second screw mandrel (11) of setting; On the bracing frame of second screw mandrel (11) other end illuminating lamp (3) is installed; Be with second slide block (14) with threaded hole on second screw mandrel (11), go up fixing the 3rd stepper motor (6) at second slide block (14), the rotating shaft of the 3rd stepper motor (6) links to each other with an end of the 3rd screw mandrel (12) of level; Camera (2) is installed on the bracing frame of the 3rd screw mandrel (12) other end; Be with the 3rd slide block (15) with threaded hole on the 3rd screw mandrel (12), go up fixation reflex probe (9), be provided with power supply (70), near-infrared light source (71), spectrometer (72), industrial computer (73) and relay (74) in the said equipment case (7) at the 3rd slide block (15); Reflection probe (9) links to each other with the input end and the near-infrared light source (71) of spectrometer (72) through optical fiber interface (75); A signal end of industrial computer (73) links to each other with the output terminal and the near-infrared light source (71) of spectrometer (72), and another signal end of industrial computer (73) links to each other with remote computer (8) through communication port (76), and an output terminal of industrial computer (73) is connected with the input end of relay (74); The output terminal of relay (74) is connected with illuminating lamp (3) with camera (2), and another output terminal of industrial computer (73) links to each other with the 3rd stepper motor (4,5,6) with first, second respectively through stepper motor driver (77).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102009854A CN101881725B (en) | 2010-06-11 | 2010-06-11 | Automatic monitoring system of greenhouse crop growth conditions based on reflection spectrum |
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| CN2010102009854A CN101881725B (en) | 2010-06-11 | 2010-06-11 | Automatic monitoring system of greenhouse crop growth conditions based on reflection spectrum |
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| CN101881725A CN101881725A (en) | 2010-11-10 |
| CN101881725B true CN101881725B (en) | 2012-01-11 |
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Families Citing this family (12)
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| CN102590103A (en) * | 2012-02-29 | 2012-07-18 | 翟学智 | Near-infrared detector for meat and detection method thereof |
| CN102621118B (en) * | 2012-03-18 | 2013-11-06 | 吉林大学 | Early warning method of greenhouse vegetable diseases and insect pests |
| CN105706783B (en) * | 2015-03-23 | 2019-06-25 | 阜阳市农业科学院 | A kind of soybean breeding apparatus of timing monitoring record |
| US10473580B2 (en) | 2016-01-14 | 2019-11-12 | Ramot At Tel-Aviv University Ltd. | Portable soil spectral probe |
| CN105815201A (en) * | 2016-04-03 | 2016-08-03 | 合肥博雷电子信息技术有限公司 | Greenhouse soilless culture intelligent monitoring system based on Internet of Things |
| CN107920093A (en) * | 2016-10-08 | 2018-04-17 | 南京理工大学 | Field crops integral intelligent monitoring device |
| WO2018111064A1 (en) * | 2016-12-15 | 2018-06-21 | Herrera Cadena Isaac Abraham | System for monitoring and controlling water stress in order to optimise oil extraction |
| CN108196035A (en) * | 2018-02-06 | 2018-06-22 | 仲恺农业工程学院 | The greenhouse detection device of crop and its soil can be traversed |
| CN109324509A (en) * | 2018-09-11 | 2019-02-12 | 合刃科技（深圳）有限公司 | Information Regulating method, apparatus and system |
| CN110057834A (en) * | 2019-05-20 | 2019-07-26 | 天津工业大学 | A kind of agricultural greenhouse greenhouse damage detection device based on machine vision technique |
| CN111194636A (en) * | 2020-02-21 | 2020-05-26 | 桂林市思奇通信设备有限公司 | Intelligent cotton bud topping system |
| CN117269108B (en) * | 2023-10-16 | 2024-02-27 | 河南省科学院 | Portable eucommia ulmoides leaf screening device and screening method for near infrared spectrum transmission detection |
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| ID26384A (en) * | 1999-06-17 | 2000-12-21 | Satake Eng Co Ltd | DIAGNOSIS METHOD OF NUTRITIONAL CONDITIONS FROM HARVEST IN FLOOR PLANT |
| CN1710406B (en) * | 2004-06-18 | 2010-04-28 | 中国农业大学 | Crop growing-state real-time analyzing instrument |
| CN2864669Y (en) * | 2005-12-16 | 2007-01-31 | 浙江大学 | Plant growth information acquiring device based on near infrared spectra |
| CN101639380B (en) * | 2008-12-02 | 2012-02-29 | 青岛科技大学 | Controllable system device of field ground feature spectral measurement |
| CN201780267U (en) * | 2010-06-11 | 2011-03-30 | 浙江大学 | Automatic greenhouse crop growth status monitoring system based on reflection spectrum |
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